[PATCH v2 1/5] winnt.h: Add some WOW64 definitions.

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 include/winnt.h | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/include/winnt.h b/include/winnt.h
index 54bf11d..c41eff4 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -2112,6 +2112,96 @@ typedef CONTEXT *PCONTEXT;

NTSYSAPI void WINAPI RtlCaptureContext(CONTEXT*);

+#define WOW64_CONTEXT_i386 0x00010000
+#define WOW64_CONTEXT_i486 0x00010000
+#define WOW64_CONTEXT_CONTROL (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000001))
+#define WOW64_CONTEXT_INTEGER (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000002))
+#define WOW64_CONTEXT_SEGMENTS (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000004))
+#define WOW64_CONTEXT_FLOATING_POINT (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000008))
+#define WOW64_CONTEXT_DEBUG_REGISTERS (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000010))
+#define WOW64_CONTEXT_EXTENDED_REGISTERS (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000020))
+#define WOW64_CONTEXT_FULL (WOW64_CONTEXT_CONTROL | WOW64_CONTEXT_INTEGER | WOW64_CONTEXT_SEGMENTS)
+#define WOW64_CONTEXT_ALL (WOW64_CONTEXT_CONTROL | WOW64_CONTEXT_INTEGER | \
+                           WOW64_CONTEXT_SEGMENTS | WOW64_CONTEXT_FLOATING_POINT | \
+                           WOW64_CONTEXT_DEBUG_REGISTERS | WOW64_CONTEXT_EXTENDED_REGISTERS)
+
+#define WOW64_CONTEXT_XSTATE (WOW64_CONTEXT_i386 | __MSABI_LONG(0x00000040))
+
+#define WOW64_CONTEXT_EXCEPTION_ACTIVE      0x08000000
+#define WOW64_CONTEXT_SERVICE_ACTIVE        0x10000000
+#define WOW64_CONTEXT_EXCEPTION_REQUEST     0x40000000
+#define WOW64_CONTEXT_EXCEPTION_REPORTING   0x80000000
+
+#define WOW64_SIZE_OF_80387_REGISTERS 80
+#define WOW64_MAXIMUM_SUPPORTED_EXTENSION 512
+
+typedef struct _WOW64_FLOATING_SAVE_AREA {
+  DWORD   ControlWord;
+  DWORD   StatusWord;
+  DWORD   TagWord;
+  DWORD   ErrorOffset;
+  DWORD   ErrorSelector;
+  DWORD   DataOffset;
+  DWORD   DataSelector;
+  BYTE    RegisterArea[WOW64_SIZE_OF_80387_REGISTERS];
+  DWORD   Cr0NpxState;
+} WOW64_FLOATING_SAVE_AREA, *PWOW64_FLOATING_SAVE_AREA;
+
+#include "pshpack4.h"
+typedef struct _WOW64_CONTEXT {
+  DWORD ContextFlags;
+  DWORD Dr0;
+  DWORD Dr1;
+  DWORD Dr2;
+  DWORD Dr3;
+  DWORD Dr6;
+  DWORD Dr7;
+  WOW64_FLOATING_SAVE_AREA FloatSave;
+  DWORD SegGs;
+  DWORD SegFs;
+  DWORD SegEs;
+  DWORD SegDs;
+  DWORD Edi;
+  DWORD Esi;
+  DWORD Ebx;
+  DWORD Edx;
+  DWORD Ecx;
+  DWORD Eax;
+  DWORD Ebp;
+  DWORD Eip;
+  DWORD SegCs;
+  DWORD EFlags;
+  DWORD Esp;
+  DWORD SegSs;
+  BYTE ExtendedRegisters[WOW64_MAXIMUM_SUPPORTED_EXTENSION];
+} WOW64_CONTEXT, *PWOW64_CONTEXT;
+#include "poppack.h"
+
+typedef struct _WOW64_LDT_ENTRY {
+  WORD  LimitLow;
+  WORD  BaseLow;
+  union {
+    struct {
+      BYTE BaseMid;
+      BYTE Flags1;
+      BYTE Flags2;
+      BYTE BaseHi;
+    } Bytes;
+    struct {
+      DWORD BaseMid : 8;
+      DWORD Type : 5;
+      DWORD Dpl : 2;
+      DWORD Pres : 1;
+      DWORD LimitHi : 4;
+      DWORD Sys : 1;
+      DWORD Reserved_0 : 1;
+      DWORD Default_Big : 1;
+      DWORD Granularity : 1;
+      DWORD BaseHi : 8;
+    } Bits;
+  } HighWord;
+} WOW64_LDT_ENTRY, *PWOW64_LDT_ENTRY;
+
 /*
  * Product types
  */